Chens Men's Automatic Watch With Dark Blue Dial Brown Leather Strap Band For the automatic watch which has not been dressed for over 48 hours,the knob shall be rotated for at least 20 rounds to start the driving system of the movement. This watch with a 24h dial,a week dial and a power reserve window.Date in the position of 3 oclock.Water-resistant to 492 feet.With 6 hands and power reserve window. This watchs crown can be pulled out into two sections.The first section is for setting day-and -date(towards to outside for date setting,inside for week setting);the second section is for setting time(towards to inside). You can make a distinction between AM time and PM time via the hour dial.Skeleton back plated with gold tone.With Swiss automatic movement. About how to set time:rotating the knob,at the time when the date jump to another day(it is 24 oclock or 0 oclock),you can set time.If it is AM now,just set the right time;but if it is PM,please firstly just keep the hour hands rotating for a whole circle then set pm time.